<template>
  <div class="dv-decoration-11" :ref="ref">
    <svg :width="width" :height="height">
      <polygon
        :fill="fade(mergedColor[1] || defaultColor[1], 10)"
        :stroke="mergedColor[1]"
        :points="`20 10, 25 4, 55 4 60 10`"
      />

      <polygon
        :fill="fade(mergedColor[1] || defaultColor[1], 10)"
        :stroke="mergedColor[1]"
        :points="`20 ${height - 10}, 25 ${height - 4}, 55 ${height - 4} 60 ${height - 10}`"
      />

      <polygon
        :fill="fade(mergedColor[1] || defaultColor[1], 10)"
        :stroke="mergedColor[1]"
        :points="`${width - 20} 10, ${width - 25} 4, ${width - 55} 4 ${width - 60} 10`"
      />

      <polygon
        :fill="fade(mergedColor[1] || defaultColor[1], 10)"
        :stroke="mergedColor[1]"
        :points="`${width - 20} ${height - 10}, ${width - 25} ${height - 4}, ${width - 55} ${height - 4} ${width - 60} ${height - 10}`"
      />

      <polygon
        :fill="fade(mergedColor[0] || defaultColor[0], 20)"
        :stroke="mergedColor[0]"
        :points="`
          20 10, 5 ${height / 2} 20 ${height - 10}
          ${width - 20} ${height - 10} ${width - 5} ${height / 2} ${width - 20} 10
        `"
      />

      <polyline
        fill="transparent"
        :stroke="fade(mergedColor[0] || defaultColor[0], 70)"
        :points="`25 18, 15 ${height / 2} 25 ${height - 18}`"
      />

      <polyline
        fill="transparent"
        :stroke="fade(mergedColor[0] || defaultColor[0], 70)"
        :points="`${width - 25} 18, ${width - 15} ${height / 2} ${width - 25} ${height - 18}`"
      />
    </svg>

    <div class="decoration-content">
      <slot></slot>
    </div>
  </div>
</template>

<script>
  import autoResize from "../../../../mixins/autoResize";
  import { cloneDeep, mergeDeep } from "../../../../utils/utils";
  import { fade } from "../../../../utils/datav-color";

  export default {
    name: "DvDecoration11",
    mixins: [autoResize],
    props: {
      color: {
        type: Array,
        default: () => ([])
      }
    },
    data() {
      return {
        ref: "decoration-11",
        defaultColor: ["#1a98fc", "#2cf7fe"],
        mergedColor: []
      };
    },
    watch: {
      color() {
        const { mergeColor } = this;
        mergeColor();
      }
    },
    methods: {
      fade,
      mergeColor() {
        const { color, defaultColor } = this;
        this.mergedColor = mergeDeep(cloneDeep(defaultColor, true), color || []);
      }
    },
    mounted() {
      const { mergeColor } = this;
      mergeColor();
    }
  };
</script>

<style lang="less" scoped>
  .dv-decoration-11 {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;

    .decoration-content {
      position: absolute;
      top: 0px;
      left: 0px;
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
    }
  }
</style>
